157838406 has 16 divisors (see below), whose sum is σ = 344374848. Its totient is φ = 47829800.

The previous prime is 157838381. The next prime is 157838407. The reversal of 157838406 is 604838751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157838407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195680 + ... + 1195811.

It is an arithmetic number, because the mean of its divisors is an integer number (21523428).

Almost surely, 2^157838406 is an apocalyptic number.

157838406 is an abundant number, since it is smaller than the sum of its proper divisors (186536442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157838406 is a wasteful number, since it uses less digits than its factorization.

157838406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391507.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 157838406 is about 12563.3755814272. The cubic root of 157838406 is about 540.4276516308.

The spelling of 157838406 in words is "one hundred fifty-seven million, eight hundred thirty-eight thousand, four hundred six".